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Secrecy Throughput Analysis for Time-Switching SWIPT Networks with Full-Duplex Jamming
Xuanxuan TANG Wendong YANG Yueming CAI Weiwei YANG Yuyang ZHANG Xiaoli SUN Yufeng QIAN
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2018/07/01
Online ISSN: 1745-1337
Type of Manuscript: LETTER
Category: Reliability, Maintainability and Safety Analysis
energy harvesting, full-duplex, SWIPT, jamming, passive eavesdropping,
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This paper studies the secrecy throughput performance of the three-node wireless-powered networks and proposes two secure transmission schemes, namely the half-duplex maximal ratio combining (HD&MRC) scheme and the full-duplex jamming scheme based on time switching simultaneous wireless information and power transfer (FDJ&TS-SWIPT). The closed-form expressions of the secrecy throughput are derived, and intuitive comparison of the two schemes is provided. It is illustrated that the HD&MRC scheme only applies to the low and medium signal-to-noise ratio (SNR) regime. On the contrary, the suitable SNR regime of the FDJ&TS-SWIPT is much wider. It is depicted that FDJ&TS-SWIPT combing with current passive self-interference cancellation (SIC) algorithm outperforms HD&MRC significantly, especially when a medium or high transmit SNR is provided. Numerical simulations are conducted for verifying the validity of the analysis.